20.500.12556/RUL-185174 Efficient elastocaloric drive system enabled by constant-torque and work-recovery design Elastocaloric cooling is a promising alternative to vapor-compression systems, offering high efficiency and reduced environmental impact. Despite significant advances in elastocaloric technology in recent years, limited attention has been given to the mechanical systems required to drive elastocaloric materials. Here we show a cam-disc-based elastocaloric drive system with integrated direct work recovery, synchronized by four phase-shifted elastocaloric elements. The system introduces a constant-torque driving approach that maintains nearly constant input power during operation. Experimental results demonstrate a nearly constant camshaft torque of 14.4 Nm and a mechanical-level work-recovery efficiency of about 70% at an actuation force of 40 kN. Numerical simulations further show that integrating force amplification mechanisms can reduce the required camshaft torque and increase work-recovery efficiency to up to 88%. These results demonstrate that efficient drive systems can be realized for elastocaloric devices, paving the way toward their practical deployment. elastocaloric cooling drive systems efficiency elastokalorično hlajenje pogonski sistemi učinkovitost true false true Angleški jezik Slovenski jezik Članek v reviji 2026-07-27 09:07:56 2026-07-27 09:08:03 2026-07-28 04:03:52 0000-00-00 00:00:00 2026 0 0 14 str. Vol. 17, art. 6715 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.82/.85:621.57 2041-1723 10.1038/s41467-026-73314-7 286059523 Zerovnik_..._Efficient....pdf Zerovnik_..._Efficient....pdf 1 4B83F81F0E61B20C1560947D099FDC2C 98d407537ee797804877c0b5032b199baccbd8c1040fbf34f194ba22e3933df4 e07e8708-8989-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=243436 https://www.nature.com/articles/s41467-026-73314-7 1 ac0b86b2-8989-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=243435 Fakulteta za strojništvo 0 0 0